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(scanned by kibogoyo)
"Chua Hock Hin, 56, sitting naked while having his meal at the dining table in his flat... Chua was fined $2,600 by the District Court for being naked in a private place and using criminal force to annoy his neighbour"
There are two previous cases that I'm aware of, but in both the men masturbated while being aware that women were looking at them, so the sentences were at least less indefensible.
Contrary to some claims, this is not Uniquely Singapore.
At least in 2004, being nude in private was also illegal in Taiwan:
"The problem touched on issues of privacy and on the tough anti-nudity laws in Taiwan. The man was practicing his exercises in the privacy of his own home, so outsiders can’t really take him to task. But the media here also explained that because the man made no attempt at hiding himself – standing in front of the window with the light shining on him, knowing quite well people in the building opposite could see him – he could still be prosecuted.
... a person who is naked in a private place but where there is a clear view from outside, because the doors or windows are open, or in a confined, clearly visible space such as a car, can receive a prison sentence of up to one year."
Meanwhile, in civilised countries like the US, it has actually been ruled that "A person has a constitutional right to be naked in a private place."
The relevant law:
MISCELLANEOUS OFFENCES (PUBLIC ORDER AND NUISANCE) ACT
(CHAPTER 184)
Appearing nude in public or private place
27A. —(1) Any person who appears nude —
(a) in a public place; or
(b) in a private place and is exposed to public view,
shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $2,000 or to imprisonment for a term not exceeding 3 months or to both.
(2) For the purpose of this section, the reference to a person appearing nude includes a person who is clad in such a manner as to offend against public decency or order.
(3) Where an offence under this section is committed in a private place, it shall be lawful for a police officer to enter the private place without the authority of the owner or occupier of the private place to effect the arrest of the offender.
(4) In effecting entry under subsection (3), it shall be lawful for a police officer to use such force as may be necessary to enter the private place.
Translation: if you're naked at home and other people can see you, the police can storm into your house to arrest you.
Addendum:
Marc: Correct translation ought to be: If you're male and naked at home and other people can see you, the police can storm into your house to arrest you. On the other hand, if you're female and naked and a guy happens to see you, then the police can storm into HIS house and arrest him for being a peeping tom.